NaH(b^3Π～A^1∑^+)-He碰撞系统转动传能量子干涉效应的研究

Collisional quantum interference on rotational energy transfer in NaH(b^3Π～A^1Σ^+) -He system

为了进一步理解原子双原子系统碰撞转动传能中的量子干涉效应,本文对NaH(b^3Π～A^1∑^+)-He碰撞系统进行了理论计算.本文利用一阶含时波恩近似和L-J相互作用势,建立了原子-双原子分子碰撞系统转动传能的量子干涉模型,通过本文理论可得出影响碰撞系统积分干涉角的因素,同时也得到了积分干涉角和转动量子数间的关系.此理论模型对于理解和进行分子束实验是非常重要的.

As a further study of the collision --induced quantum interference on rotational energy trans- fer in an atom-diatom system, a dynamic model is described in this letter. As a guidance of the experi- ment, the interference angle of Nail NaH（b3Ⅱ-A1∑＋） with He collision system is calculated theoretically in this letter. The model based on the time dependent first order Born approximation, and taken into ac- count the anisotropic Lennard-Jones interaction potentials. We got the factors that have effect on CQI in NaH--Na system, and got the relation of the integral interference angle and rotational quantum num- ber. This theoretical model is important to understanding or performing this kind of experiments.